Debbas
spinning method



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Office makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED FEBRUARY 10, 1970 T871,003 SPINNING METHOD Samir C. Dehbas, Madison, Tenn., assignor to E. I. du

Pont cle Nemours and Company, Wilmington, Del., a

corporation of Delaware Filed May 20, 1969, Ser. No. 826,183 Int. B28b 3/20 US. Cl. 264-22 1 Sheet Drawing. 10 Pages Specification A method for improving the distribution of binder and matrix filaments used in the preparation of nonwoven webs. The binder and matrix filaments are spun from the same spinneret through orifices grouped to provide uniform distribution of the filaments, and then charged at two separate locations along their path of travel. The charge imparted at the first of such locations is at least 50 percent of the total charge applied to the filaments. The filaments are passed over a guide positioned between the two charging locations. The guide has a concave surface contacting the filaments which prefera-bly has a radius of curvature in the range Qt from about 18 to ab ut 0 inches Feb. 10,1970. s. c. D'E B'BAS I T8719 SPINNING METHOD Filed May 20, 1969 FIG.2

INVENTOR SAMIR c. DEBBAS ATTORNEY 

